Gadolinium Magnet Generator.

[synchro1]

http://www.google.com/patents/US3743866

@ekimtoor1,

This Is a very interesting patent. It dates back to 1973 before the current advances in MCE. Two separate rotor magnets in attraction, rather then opposition like the patent, with Gadolinium in between at the currie point, would both be attracted to the Gadolinium. The nearly instantaneous heating from the permanent magnet field would eliminate the ferromagnetic attraction of the Gadolinium and perhaps allow the two rotors to slip by depending on their separation distance and the thickness of the Gadolinium.

This approach would result in low torque because the Gadolinium would need to change temperature again in time for the next pair
of rotor magnets instead of having a full revolution for the transition. This design would depend heavily on the efficiency of the heating electrodes. Nice find! Thank you. 

[ekimtoor1]

I researched the transition speed of gadolinium and found a few things, nothing I could understand.  Does anyone know the speed of the transition from ferromagnetic to non and vice versa?  I've read that gadolinium will be cooler on exiting the magnetic field than when it arrived.  Is this true?

I ordered a couple of the coins so I can do some hands on with the stuff.

@synchro1 - glad I could contribute something useful! You are welcome!

[memoryman]

I have trouble finding the exact specs for these alloys and metals re the speed of heating; "nearly instantaneous heating from the permanent magnet field" do you have specs for that?
I have some ideas, which I'll be happy to share, but they depend on the characteristics of the materials.
Bill

[ekimtoor1]

if a small peltier module was fixed to gandolinium, would the heat flow efficiently enough from the gandolinium into the peltier (could harvest  a few electrons too) to allow it to come back below the curie point in time to cycle the next rotor magnet? 

[synchro1]

Here´s Tesla´s version:

Diagram from Tesla's patent of 1889.

"Assume that we start with the armature A attracted to the magnet N. A is heated by the gas burner H, loses its magnetic properties and is pushed up and away from magnet N and burner H by the spring W. A then cools, becomes magnetic again, and is attracted back to the magnet, where the burner starts to heat it up again. The cycle turns the flywheel 13 through connecting rod 12".